why crazy people suffers

I know that I'm different. Different on my perceptions in life, different on how i dress, and also in the way of thinking, but why can't people accept me??? why do they judge me without even knowing what I am?? it's just sad that i was the only one who understands myself?? I have no real friends at school, my parents were not paying attention to my emotions and my boyfriend?? well i don't know about him.